1. Product Core
Centered on the spiral-wound structure of "metal framework + functional filler", the Flexible Spiral Wound Gasket optimizes winding density (industry average: 8-12 turns per centimeter) and interlayer adhesion through big data.This addresses high-frequency pain points such as "high-pressure leakage and temperature deformation failure" in static sealing scenarios, making it one of the top 3 most adaptable gasket types in the industrial sealing field (per the 2024 Global Seals Market Report).
2.Key Technical Parameters
|
Parameter Category |
Mainstream Specification Range |
Big Data Preferred Value |
|
Metal Strip Material |
304/316L/321 Stainless Steel, Monel |
316L (68% of corrosion-resistant scenarios) |
|
Filler Type |
Flexible Graphite, PTFE, Ceramic Fiber |
Flexible Graphite (75% of general scenarios) |
|
Temperature Resistance |
-200℃~1000℃ (varies by filler) |
-196℃~850℃ (for graphite filling) |
|
Pressure Resistance |
0~40MPa |
1.6~25MPa (covers 80% of working conditions) |
|
Sealing Face Type |
RF/MFM/TG |
RF (62% of general scenarios) |
|
Nominal Diameter |
DN15~DN2000 |
DN50~DN500 (70% of demand) |
|
Gasket Thickness |
3~10mm |
4.5mm/6mm (high-frequency specifications) |
|
Executive Standards |
ANSI B16.20, GB/T 4622.2 |
Dual-standard compliance (55% of export scenarios) |
3. Core Features
Wide-Range Environ mental Resistance: Based on data from over 1,200 working conditions, the Flexible Spiral Wound Gasket uses combinations of fillers (graphite/PTFE/asbestos-free alternatives) and metal strips (304/316L/Monel alloy), which cover a temperature range of -200℃ to 1,000℃ (for graphite filling) and a pressure range of 0 to 40MPa, with a chemical corrosion resistance rate of up to 98% (suitable for acids, alkalis, organic solvents, etc.).
Long-Lasting Sealing Reliability: The spiral-wound structure maintains a stable compression rebound rate of 15%-25% (industry standard ≥12%). Big data shows its average sealing life is 3-5 times longer than ordinary flat gaskets, with a leakage rate ≤1×10⁻⁷Pa·m³/s (complying with ISO 15848-1 Class BH).
High Adaptability: Compatible with global mainstream flange standards (ANSI, DIN, JIS) and sealing surfaces (RF - Raised Face, MFM - Male-Female Face, TG - Tongue and Groove Face). It has an installation tolerance of ±0.2mm (optimized for high-frequency scenarios with flange parallelism deviations).
Balanced Lightweight Design and Strength: Metal strips (0.15-0.25mm thick, big data-preferred specification) reduce overall weight by 40% compared to metal-clad gaskets. Reinforcement rings (carbon steel/stainless steel) enhance tear resistance and prevent deformation during installation.
Environmental Compliance: Over 95% of products meet RoHS, REACH, and FDA (food-grade scenarios) requirements, with 100% usage of asbestos-free fillers (aligning with global environmental regulatory trends).
4. Application Scenarios
Petrochemical Industry: Flange sealing for atmospheric and vacuum distillation units, catalytic cracking equipment (suitable for crude oil, gasoline, etc., with high temperature and pressure resistance).
Power Energy: Sealing for heat exchangers and steam turbine pipelines in thermal/nuclear power (graphite-filled models adapt to steam conditions above 300℃).
Chemical & Pharmaceutical Industry: Flange sealing for reactors and storage tanks (PTFE-filled models adapt to highly corrosive media, meeting GMP cleanliness requirements).
Food & Beverage Industry: Sanitary flange sealing for brewing and dairy equipment (deburred process to avoid medium contamination).
Marine Heavy Industry: Sealing for marine power systems and ballast tank pipelines (seawater corrosion resistance, adaptable to vibration conditions).
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